Lightweight cement and method of cementing therewith
US4234344A · kind A · utility
155Cited by
11References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1979 |
| Grant date | Nov 18, 1980 |
| Priority date | — |
| Expiry date | May 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/57
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low-density, high-strength cement composition useful in a high temperature environment, such as in thermal wells, which includes hydraulic cement, a siliceous material and a relatively low-density inorganic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.